Air-gun.



A. WISSLER.

AIR GUN.

APPLICATION FILED AUG.14. 1911.

Patented Sept. 16, 1913.

Q www1@ QN W W/ TNESSES barrel 2 is closed by a plu ADOLPH WISSLER, 0F ST. LOUIS, IIIISSOBI.

AIR-GUN.

Specification of Letters Patent.

Patented Sept. 16, 1913.

Application filed August 14, 1911. Serial N o. 644,274.

To all whom t may concern:

Be it known thatl I, ADOLPH Wisslinn, a citizen of the United States, residing at the city of St. Louis, State of Missouri, have invented a certain new and useful Improvement in Air-Guns, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which F igurel is a sectional view through my improved air gun; Fig. 1El is a top 1an view of the rear portion of the barrel; iig. l" is a rear elevational' view of the same; Fig. 2 is an enlarged view showing the valve and spring' for supporting the same, and Fig. 3 is a plan view of the supporting spring.

This invention relates to a new and useful improvement in air guns, the object being to simplify the construction and reduce the cost of manufacture.

Another object is to the take-down t pe.

With these obJects in view, the invention consists in the construction, arrangement and combination of the several parts which will be hereinafter described and pointed out in the appended claims.

My present invention is designed particularly as an improvement upon the air gun shown in the Benjamin Patent N o. 822,645, dated June 5, 1906, to which reference may be made .for a fuller description of parts hereinafter shown but not describedI in detail.

In the drawings, l indicates the stock and make an air gun of 2 the piston barrel of the gun. The breech' of this piston barrel is reinforced by a saddle plate 3 which may be soldered or other- Wise secured in position thereon and which saddle plate serves ifor the attachment of a clamping bolt 4. The forward end of this 5 serving as a guide for the piston ro 6. An aperture 2 is formed through the4 forward .portion lof the barrel 2, to permit the ingress of airto be compressed. The outer end of the piston 6 is provided with a buttonI head 7.l The inner end o piston 6 is slightly reduced to provide `a shoulder against which a Washer 8 is supported, said Washer forming a backing for a rubber or position by means of theinner end of pisleather valve 9 held in the nut 10 threaded on ton rod 6.

11 indicatesa buffer spring surrounding the inner end of the piston rod so as to absorb shocks or jars incident to the outward pull of the piston rod.

In operation the piston is intended to be reciprocated so as to compress the air behind the same and force the compressed air through a tube 12 mounted in a partition wall 13 which wall forms the forward end of the compression chamber. The tube 12 is flexible to some degree and carries at its inner end a valve support 14 provided with a stepped seat as shown in Fig. 2. This valve support is provided with a headed projection 15 on its under surface which coperates with the narrow portion of a key-hole opening in spring 16. This spring is bent upon itself, the lower leg thereof resting upon the bottom of barrel 2.

17 vindicates a bent portion extending into the larger portion of the key-hole opening so that if it is desired at any time to remove the spring for the purpose of renewing the barrel, said spring may be pulled rearwardly and the tongue 17 will prevent 'the button-head 15 from engaging the spring and hence said spring may be readily removed. When removed, the valve support may he depressed and the valve 1S removed for purposes of renewal. The valve 18 is in the form of a solid ball which rests upon the stepped valve seat and also closes an opening in a ported block 19, soldered or otherwise secured to the upper portion of the barrel 2. This valve is intended to close the opening in the ported block, and, in operation, when air is compressed in the couipression chamber by the reciprccations of the piston the said air will pass through the tube'12 and pass between the stepped valve seat and the valve into the compression chamber, the spring 16 permitting the stepped valve seat to be moved downwardly slightly for the passage of the incoming air. IV ien the compression chamber is fully charged, which may require three or four strokes of the piston, depending upon the amount of pressure desired, the cated in dotted lines in Fig. 1, which is to be shot from the gun, is dropped into muzleo zle ofthe barrel 2O when theegun upright until it reaches the contracted portion of said barrel as shown, where it is lodged by being wedged in place. rIhis pellet is preferably globular in form and made of lead. rIhe barrel 2O carries a front sight 2i and a rear sight 22. of the barrel 20 is closed, and a lateral port in its bottom communicates with the port in bloclr 19. Preferably the side walls of barrel 20 are extended beyond the plug at its rear end so as to form ahousing to protect the trigger 23 and serve as a guard to prevent the trigger an accidental blow on top. rlhis trigger is in form' of a bell-crank lever and is pivote at 2f?)a inthe rearwardly extending side walls of the barrel 20. The forward eXtension of the trigger is notched as designated by 23b to form a seatl for the upper end o a valve operating rod 2t. |Ihis rod is provided with a cup at its bottom in a manner similar to that shown in the Benjamin pattent, aforesaid, but, in addition, I have introduced a new element in the form of a pointed projection 25 preferably extending in axial alinement with the rod 24, and which enters the rubber ball valve so as to prevent the same from turning. This is desirable from the fact that the ball valves are molded and frequently the mold cavities do not register exactly and in consequence, there is left a rough, line lincident to the part-ing line of the molds, which line, if the ball is turned so as to cause said line to intercept the valve seat, will prevent the valve from seating properly. By means of the pointed projection entering the valve, as shown, the valve is held in its proper position at all times and the parting line referred to may be kept located between the valve seats.

The rear end of barrel 2 is closed by a rubber cup-shaped packing 26 held in position by a metal washer 2T, said washer, in turn, being backed by a cylindrical headed plug 28 which is slotted vertically for the passage of the trigger 23. A pin or screw 29 holds this cylindrical plug in position. I consider this construction important, as it has been found, in practice, that the manner of forming the rear wall of the compression chamber shown in the Benjamin patent, aforesaid, is objectionable, the threaded plugs frequently being blown out when a heavy charge is compressed in the chamber. rIhe trigger 23 extends down through an opening in the stock and is operated within a trigger-guard la secured to the stock. The upper portion of the trigger 23 extends through a vertical slot formed in the rear portion of the barrel 2 to the rear of the compression chamber therein, and the horizontally disposed upper end of said trigger occupies a vertical slot in the rear end of The rear end l from being actuated by' and held by the foot of circumferential Leraaafi is held l the pellet barrel 20 to 'the rear of the shoulder therein against whichy the pellet rests prior to discharge.

'Io take down the gun, it is only necessary to remove thel knurled nut 4 from the bolt 4 and separate the stock from the barrel, said bolt and the trigger being lifted up through their respective openings. 'Io assemble the gun, of course t-he reverse op eration is followed. The operation of charging, loading and tiring the gun is perhaps obvious from the above. its stated before, the piston is reci rocated according'to the desired amount o pressure required inthe compression chamber. Preferably, the but` ton-head of the piston is placed on the floor the operator andthe gun moved up and down. In this manner the operator can place his entire weight on the stock of the gun and not only secure a greater compression, but, by having the muzzle pointed downward, the danger of an accidental discharge, when the pellet is in the gun, is avoided.

It will be readily understood that minor changes in the size, form and construction of the various parts of my improved air rifle may be made and substituted for those herewith shown and described without departing from the spirit of my invention, the 9 scope of which is set forth in the appended claims.

I claim:

l. In an air gun, a tube having a compression chamber at its rear end, a pellet tube attached to the lirst mentioned tube, which pellet tube is in communication with said compression chamberpthe rear end of said pellet tube being slotted, a valve controlling the port of communication between the compression chamber and pellet tube, a valve pin projecting into the slot in the pellet tube, and a trigger having a portion positioned in the slot in the pellet tube and engaging said pin.

2. In an air gun. the combination with a compressionchamber having an ingress valve opening, of a ball valve normally closing the ingress opening, a cup normally engaging said ball valve, a resilient tube leading into the compression chamber and carrying the cup, a headed projection on the underside of the cup, and a flat spring having one end detachably connected to said headed projection and the opposite bearingV against the wall of the compression chamber.

3. In an air gun, the combination of a compression chamber, a yielding tube lead ing thereinto and carrying a valve seat at its inner end, a valve coperating with said seat, and a removable j flat spring folded upon itself and arranged under said valve 'seat to force the same upwardly against said valve.

4. In an air gun, the combination of a compression chamber, a yielding valve seat arranged therein, a valve cooperating with said seat, and a flat spring coperating with said valve seat; said spring havin a key hole opening for engagement with t e valve seat.

5. In an air gun, the combination of a compression chamber, a yielding valve seat arranged therein, a valve coperating with said seat, a fiat spring coperating with said valve seat; said spring having a key hole opening for engagement with the valve seat, and a bent tongue extendingint'o the larger port-ion of said key hole-"opening for assisting in the disengagement between said spring and said seat.

6. In an air gun, the combination of a compression chamber, a pellet barrel, a orted block leading into said pellet barre an egress valve for controlling the passage of air from said compression chamber to said pellet barrel, the rear end of said pellet barrel being slotted vertically, a valve operating rod arranged in said slot, and a trigger also pivotally mounted in said slot for cooperating with said rod.

In an air gun, the combination of a compression barrel and a pellet barrel, the rear end of said compression barrel having a compression chamber and both of said barrels being slotted vertically at their xtreme rear ends, a. trig er extendin through the slots in said barre s, and a valve coperating with said trigger for controlling t e air from the compression chamber to said pellet barrel.

8. In an air gun, the combination of a compression barrel, a compression chamber arranged at the rear end of said barrel, a cup-shaped yielding washer formin the rear wall of said compression cham er, a disk-shaped washer for supporting the first mentioned washer in posltion, a plug for holding said last mentioned washer in place, and a pin for securing said plug in posltion.

9. In an air gun the combination with a tubular member provided with a compression chamber at its rear end, a hollow plug seated in the rear end of said tubular member and forming the rear head of the compression chamber, said plug and the rear end of the tubular member being slotted to receive the air gun trigger.

10. In an air gun, the combination of a compression chamber, a pellet barrel the rear end of which is slotted, a valve operatin rod extending into the slotted rear end o said pellet barrel, and a trig er pivotally mounted so as to coperate with said valve operating rod; a portion of which trigger occupies the slot in the rear end of said pellet barrel.

11. In an air gun the combination with a compression barrel, of a ellet barrel, the rear ends of which barres are vertically slotted, a stock detachably applied to the compression barrel, and a trigger positioned in the slots of the com ression and pellet barrels and extending tHrough an opening in the stock. v

12. In an air gun, the combination of a compression barrel having a compression chamber at its rear end, a pellet barrel secured thereto, a valve for controlling the egress of air from said compression chamber to said pellet barrel, the rear ends of said barrels being slotted verticall., a trig er pivotally mounted in said slot gbr operating said valve, a stock through which said trigger passes, and a bolt secured to the compression barrel and extending through an opening in said stock; said bolt belng provided with a nut to separably secure said parts together.

In testimon signature in t this 9th day of whereof I hereunto affix my e presence of two witnesses, Au st, 1911.

DOLPH WISSLER. Witnesses:

M. P. SMITH, JOY HU'rmN. 

